Office machine



FIG. 1 is a perspective view of an office machine showing the ornamental design in accordance the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for an office machine, as shown and described. 